LOL. Yeah, as soon as a company claims something is unhackable, unbreakable, unfillintheblank, someone is going to take that as a challenge and will likely succeed. The company was given 30 days to fix this problem before news of it was to be released to the public. But, sadly, as the article notes, they "went dark" after being notified.
Yes, marketing something as unhackable is not wise move. It might help their marketing department but it will inevitably lead to embarrassing hacks.